Report London 2012 Olympic Cauldron... in London 2012 Ceremonies Discussions Posted August 13, 2012 Yeah, those are the individual knobs/pistons/controls...whatever you want to call them...for each stem. I believe each one had to have its own control, and that's setting it up for the Paralmypic use when there will be less than the 204 stems used. Actually, they could've cheated and just used (I think) 160 or 170 for the Paralympics...and no one except the manufacturer would've known the difference. Because what are they going to do with the base of that thing afterwards? Will it go to a UK-Olympics museum?? Kinda ugly thing to display. I'm not sure where it will go... maybe nowhere and simply destroyed?